 
(* ::Section:: *)
(* LorentzIndex *)
(* ::Text:: *)
(*LorentzIndex[mu] denotes a four dimensional Lorentz index. For other than four dimensions: LorentzIndex[mu, D] or LorentzIndex[mu] etc. LorentzIndex[mu, 4] simplifies to LorentzIndex[mu]..*)


(* ::Subsection:: *)
(* See also *)
(* ::Text:: *)
(*ChangeDimension, Momentum.*)



(* ::Subsection:: *)
(* Examples *)
(* ::Text:: *)
(*This denotes a 4-dimensional Lorentz index.*)


LorentzIndex[\[Alpha]]


(* ::Text:: *)
(*An optional second argument can be given for a dimension different from 4.*)


LorentzIndex[\[Alpha],n]
